A star, Miyuki Goto (Ko Shibasaki) plays Oiwa, the protagonist in a new play based on the ghost story, Yotsuya Kaidan. She pulls some strings to get her lover, Kosuke Hasegawa (Ebizo Ichikawa) cast in the play although he's a relatively unknown actor. Other performers are Rio Asahina (Miho Nakanishi) and Jun Suzuki (Hideaki Ito) who lusts after Miyuki. With the cast in place, rehearsals begin. In the play, the egotistical Iemon mercilessly abuses Oiwa who develops a deadly grudge against him. Off stage there's another reality with the cast's possessive love and obsessions. Trapped between the play and reality, the cast's feelings for each other are amplified. When it becomes clear that love is not meant to be both on and off stage, the love turns to a grudge and crosses the blurred line between reality and fantasy. Will their love flourish or turn dark?